Who's Calendar is it ???

Anyway: I have set up a bunch of "shared" calendars and separated the people into groups by color. The number of groups far outweighs the numbers of colors, I won't discuss the number of people :-) The question comes down to a simple one. I know that calendar entry is somebody I need to deal with and (s)he is going to be in Timbucktu next week but at a glance I don't know who it is. I can put the calendar in Schedule mode but I have to select the day and by the time I've done this for half-a-dozen people I've forgotten who it was that was in Toledo & who went to Timbuckto ..... Is there a switch or ?? that would allow the mouse-over view to show me the name of the calendar owner without switching views ??? If not is it a difficult enhancement ?